1 / 16

Effect of inherent optical properties on Rrs Results from the HyCODE program Pegau and Boss

Effect of inherent optical properties on Rrs Results from the HyCODE program Pegau and Boss. Results to date Work in progress Spin-offs from HyCODE work. Results to date: Subsurface optical structure and its influence on Rrs.

byrd
Download Presentation

Effect of inherent optical properties on Rrs Results from the HyCODE program Pegau and Boss

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Effect of inherent optical properties on Rrs Results from the HyCODE program Pegau and Boss Results to date Work in progress Spin-offs from HyCODE work

  2. Results to date: • Subsurface optical structure and its influence on Rrs. • Estimation of backscattering using a single measurement of scattering in the back direction. • Introduction of a novel parameter to study particulate composition and distribution in the ocean. • Development of a novel algorithm to obtain the beam attenuation from Rrs. • Effect of phase function on Rrs. • Variability of optics and physics at LEO-15.

  3. 2002 • We moved!!! • Analysis showed IOP structure effected reflectance in 2001 • Noise level of TSRB same magnitude as expected IW modulation • Participated in scattering workshop (Scott and Amanda) • Developed algorithm for c from reflectance (Emmanuel and Collin) • Showed relationship between cp and particle size in field data

  4. Subsurface optical structure and its influence on Rrs.

  5. Subsurface optical structure and its influence on Rrs: Barnard (2000): Internal waves in the lee of a partial sill. Internal wave dynamics and optics at Oceanside (With Weidemann and Johnson).

  6. Estimation of backscattering using a single measurement of scattering in the back direction. • Theoretical study. • Instrumental closure. • Stimulated software modification at HobiLabs (incorporated summer 2002). • Stimulated streamlining of calibration procedure at WetLabs. Boss E. and W. Scott Pegau, 2001. The relationship of light scattering at an angle in the backward direction to the backscattering coefficient. Applied Optics, 40, 5503-5507.

  7. Introduction of a novel parameter to study particulate composition and distribution in the ocean (the backscattering ratio, w/ Mike Twardowski) . Twardowski M., E. Boss, J. B. Macdonald, W. S. Pegau, A. H. Barnard, and J. R. V. Zaneveld, 2001. A model for estimating bulk refractive index from the optical backscattering ratio and the implications for understanding particle composition in case I and case II waters. Journal of Geophysical Research, 106, 14,129-14,142. E. Boss, W. S. Pegau, M. Lee, M. S. Twardowski, E. Shybanov, G. Korotaev, and F. Baratange. The particulate backscattering ratio at LEO 15 and its use to study particles composition and distribution. Submitted to JGR-Oceans.

  8. Development of a novel algorithm to obtain the beam attenuation from Rrs (w/ Collin Roesler). Roesler C. S. and E. Boss. 2003. A novel ocean color inversion model: retrieval of beam attenuation and particle size distribution. Geophys. Rev. Let. In press.

  9. Collaborations with HyCODE scientists in studies of: • Effect of phase function on Rrs (Mobley, Chang). • Variability of optics and physics (Chang). Mobley, C. D., Sundman, L. K. and E. Boss, 2002. Phase function effects on oceanic light fields. Applied Optics, 41, 1035-1050. G. C. Chang, T. D. Dickey, E. Boss, C. D. Mobley and W. S. Pegau. 2003. Toward Closure of Upwelling Radiance in Coastal Waters. Applied Optics, In press. Chang G. C., T. D. Dickey, O. M. Schofield, A. D. Weidemann, E. Boss, W. S. Pegau, M. A. Moline, and S. M. Glenn, 2002. Near shore physical forcing of bio-optical properties in the New York Bight. Journal of Geophysical Research, 107, C9, 3133, doi:10.1029/2001JC001018.

  10. Work in progress: • Closure of scattering instruments (With NAVAIR, Voss, Agrawal, Chang). • Near forward scattering (w/ A. Briggs). • PSD and beam-c spectra (w/ M. Carney). • Subsurface optical structure and its effect on Rrs. • Application of a novel algorithm to obtain the beam attenuation from Rrs at LEO-15 (w/ Arnone et al.).

  11. HyCODE spin-off: • Modeling the light field in the presence of waves. • AUV for measuring optical and physical properties in high resolution (ONR). • Design and testing of novel sensors for incorporation on autonomous vehicles (NOPP, NASA). • Using optics to measure carbon flux parameters in the Sacramento river (USGS). • Involvement in design and operation of current and future Ocean Observing Systems.

  12. Effects of light focusing by waves on IOPs and on Rrs (w/ Ron Zaneveld). Zaneveld , J. R. V., E. Boss and A. Barnard. 2001. Influence of surface waves on measured and modeled irradiance profiles. Applied Optics, 40, 1442-1449. Zaneveld, J. R. V., E. Boss and Paul A. Hwang, 2001. The influence of coherent waves on the remotely sensed reflectance. Optics Express, 9, 260-266.

  13. Design and testing of novel sensors for incorporation on autonomous vehicles (NOPP, NASA):

  14. Eriksen Seaglider & NOPP partnership

More Related